SonicWall NSa Firewalls: How to choose & buy an NSa firewall

What is a SonicWall NSa firewall?

SonicWall NSa firewalls are next-gen appliances built to provide unified, advanced threat protection and centralized network management to mid-sized businesses. In short, if your network supports between 100 and 2,500 users, an NSa firewall may be right for you.


To begin, we’ll compare features of NSa and TZ firewalls. After that we’ll explore NSa firewall tech specs and how to boost your SonicWall firewall with smart security services like AGSS.

What’s the difference between SonicWall NSa firewalls & TZ firewalls?

SonicWall NSa and TZ firewalls share a lot in common. For example, both support cloud-based sandbox capabilities with SonicWall Capture ATP as well as many of SonicWall’s patented security features like Re-assembly Free Deep Packet Inspection (RFDPI) and Real-Time Deep Memory Inspection (RTDMI).

NSa Series is best suited for:

  • Large branch offices & distributed enterprises
  • Data centers & corporate HQs
  • Hotels, convention centers, & dorms
  • Doctors’ & dentists’ offices

TZ Series is better suited for

  • Retail spots & restaurants
  • Small offices & home offices
  • Law firms, satellite offices, and outposts

In other words, the NSa series may be a bit too large for smaller businesses. We recommend checking out SonicWall TZ entry-level firewalls instead. After that, expand your know-how with our SonicWall TZ firewall article spotlighting the SonicWall SOHO 250 and SonicWall TZ350.

Comparing NSa firewall prices & tech specs

The best way to compare NSa firewalls is by visiting our SonicWall Firewall Comparison page or a SonicWall NSa datasheet. Similarly, you can compare critical stats at-a-glance with this snapshot of NSa firewalls by price and performance.

SonicWall NSa 2650

nsa 2650 from sonicwall next gen firewall

  • Appliance Only MSRP: $2,495.00
  • Max Throughput: 3.0 Gbps
  • Threat Prevention Throughput: 1.5 Gbps
  • Built-In Storage (SSD): 16 GB
  • Max SSL VPN Licenses350


SonicWall NSa 3650

NSa 3650

  • Appliance Only MSRP: $3,995.00
  • Max Throughput: 3.75 Gbps
  • Threat Prevention Throughput: 1.75 Gbps
  • Built-In Storage (SSD): 32 GB
  • Max SSL VPN Licenses500


SonicWall NSa 4650

NSa 4650

  • Appliance Only MSRP$6,495.00
  • Max Throughput: 6.0 Gbps
  • Threat Prevention Throughput: 2.5 Gbps
  • Built-In Storage (SSD): 32 GB
  • Max SSL VPN Licenses: 1,000


SonicWall NSa 5650

NSa 5650

  • Appliance Only MSRP: $10,995.00
  • Max Throughput: 6.25 Gbps
  • Threat Prevention Throughput: 3.4 Gbps
  • Built-In Storage (SSD): 64 GB
  • Max SSL VPN Licenses: 6,000


SonicWall NSa 6650

NSa 6650

  • Appliance Only MSRP: $23,595.00
  • Max Throughput: 12.0 Gbps
  • Threat Prevention Throughput: 5.5 Gbps
  • Built-In Storage (SSD): 64 GB
  • Max SSL VPN Licenses: 6,000


TotalSecure Advanced for SonicWall NSa firewalls

NSa firewalls include all the basic security features needed to secure your SMB. But bad guys go way beyond the basics. Therefore, small businesses should not rely on a bare-bones deployment. On the contrary, even small businesses should license advanced security services for SonicWall firewalls to empower admins. As a result, they’ll be able to stop more threats and better control network traffic.

  • Stop zero day threats like malware cocktails with behavior-based threat scanning
  • Rely on 24×7 support from SonicWall experts to keep you up & running around the clock
  • Detonate ransomware payloads in a secure, virtual environment with cloud-based sandboxing
  • Clean up inboxes from unwanted spam, email-borne threats, & elusive phishing schemes

Learn more about SonicWall AGSS to secure your small business against malware, ransomware, and zero day exploits.